Wietse Venema <wie...@porcupine.org> schrieb am 23.08.20 um 14:14:05 Uhr:
> > > >> with postfix version 2.11.11? > > > > > > > > You are running some Frankenstein Postfix, perhaps with features > > > > backported by RHEL. Such backports are NOT part of the official > > > > Postfix release, and are NOT SUPPORTED. > > > > > > RHEL 7 has 2.10.1, RHEL 8 has 3.3.1. There is no release of RHEL that > > > comes with Postfix 2.11.11. Whatever he has it's not a stock RHEL > > > Postfix. > > > > I installed 2.11.11 from > > http://repo.mailserver.guru/7/os/x86_64/repoview/index.html > > because it had features 2.10.1 did not have. > > I downloaded the RPM and there is no SMTPUTF8 code in there. > > More likely, the bounce was sent by a downstream Postfix server. > This means that replacing your Postfix 2.11.11 with one that supports > SMTPUTF8 will not prevent the bounce. > > Solution: encode raw UTF8 in message headers. > > Workaround: disable SMTPUTF8 on all servers that have SMTPUTF8 > support. But that just moves the problem to a mail server on the > remote end. Thank you for looking into this one more time! I'll read the documentation of SMTPUTF8 again to better understand what it is doing. Andreas > > Wietse
